Try not to take this personally, but in this context there's apparently not as much difference as you seem to think. Neither of you (as evidenced by your question) knew enough about DNS to fully understand the implications of what the article was saying. At best you knew enough to know what question to ask.

My point is actually that there's no reason average users need to know this stuff. Any more than there's a need for them to know what a CV boot is on their car. They know if the car makes a weird noise going around corners, call a mechanic. They know if they get errors on "teh Googlez", to call their ISP.